1 /* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef BASE_NOTIFICATION_DISTRIBUTED_NOTIFICATION_SERVICE_SERVICES_DISTRIBUTED_INCLUDE_DEVICE_CALLBACK_H 17 #define BASE_NOTIFICATION_DISTRIBUTED_NOTIFICATION_SERVICE_SERVICES_DISTRIBUTED_INCLUDE_DEVICE_CALLBACK_H 18 19 #include <string> 20 21 #include "device_status_change_listener.h" 22 23 namespace OHOS { 24 namespace Notification { 25 class DistributedDeviceCallback : public DistributedKv::DeviceStatusChangeListener { 26 public: 27 /** 28 * @brief Device connection status changed callback function structure. 29 */ 30 struct IDeviceChange { 31 std::function<void(const std::string &deviceId)> OnConnected; 32 std::function<void(const std::string &deviceId)> OnDisconnected; 33 }; 34 35 /** 36 * @brief The constructor. 37 * 38 * @param callback Device connection status changed callback. 39 */ 40 explicit DistributedDeviceCallback(const IDeviceChange &callback); 41 42 /** 43 * @brief The deconstructor. 44 */ 45 ~DistributedDeviceCallback(); 46 47 private: 48 void OnDeviceChanged( 49 const DistributedKv::DeviceInfo &info, const DistributedKv::DeviceChangeType &type) const override; 50 DistributedKv::DeviceFilterStrategy GetFilterStrategy() const override; 51 52 private: 53 IDeviceChange callback_; 54 }; 55 } // namespace Notification 56 } // namespace OHOS 57 58 #endif // BASE_NOTIFICATION_DISTRIBUTED_NOTIFICATION_SERVICE_SERVICES_DISTRIBUTED_INCLUDE_DEVICE_CALLBACK_H